C-119 Tanker 137 at Battle Mountain
- Invites visitors to help solve the mystery of Tanker 136 and 137.
- http://www.ruudleeuw.com/bmtn.htm

Expanding the Tanker Fleet - Part 2
- Analysis of how the Royal Australian Air Force will meet its future air-to-air refueling needs.
- http://f-111.net/CarloKopp/aar-expand-2.html

Expanding the Tanker Fleet - Part 1
- Analysis of how the Royal Australian Air Force will meet its future air-to-air refueling needs.
- http://f-111.net/CarloKopp/aar-expand-1.html

Boeing C/KC-97 Stratofreighter
- Production numbers, and photo reference of the C-97 Stratofreighter, KC-97 Stratotanker, and derivative Super Guppy. Contains information on modeling.
- http://www.cybermodeler.com/aircraft/c-97/strat.shtml

U.S. Army Otter Caribou Association
- Dedicated to the aircraft and those who flew or supported them. Includes membership and reunion information, photographs and links.
- http://www.otter-caribou.org

FAS: Airlift Cargo Aircraft
- News and statistical information on modern U.S. military airlifters.
- http://www.fas.org/man/dod-101/sys/ac/lift_comp.htm

The Aviation Zone
- Dedicated to military transports, aerial tankers, and fixed-wing gunships. Contains more than 2,500 photo images, detailed fact sheets and aircraft diagrams. More than 100 different aircraft are represented.
- http://www.theaviationzone.com/